The phase of matter can be changed by:
a) increasing temperature
b) decreasing mass
c) increasing volume
d) all of the above
Answers
Answer: A
Explanation: Mass and volume is the amount, amount doesn’t make the phase of a matter change.
Related Questions
Marble is made from limestone under the influence of heat and pressure. The chemical formula for limestone or marble chips is CaCO3. When you added the chips to the acid solutions, they effervesce
What is the gas that is produced?
What is the chemical formula of the gas?
How could you test rocks for the presence of limestone?
Write a balanced symbol model for the reaction of limestone with hydrochloric acid.
Answers
Answer:
carbon dioxide is produced.
CO2 is the chemical formula.
A sample of vinegar has a pH of 5, and a sample of rainwater has a pH of 6. Which of the following statements best describes these two substances?
A. Both samples are bases, and vinegar is more basic.
B. Both samples are acids, and vinegar is more acidic .
C. Both samples are bases, and rainwater is more basic.
D. Both samples are acids, and rainwater is more acidic.
it would be a lot of help <3
Answers
PEASE HELP!! I NEED THIS DUE BY THIS FRIDAY!!!!
Write a scientific argument that addresses the question: Which suspect is most likely to have made the hydrofluoric acid? First, state your claim. Then, use evidence to support your claim. For each piece of evidence you use, explain how the evidence supports your claim. As you write, refer back to your completed Modeling Tool sheets and Science Seminar Evidence Cards.
Answers
Answer:
pat pat is most likely to have made the hydrochloric acid
Answer:
please im begging youif you already have the answer help a girl out and give the answers
Explanation:
Can someone please help me. T-T
Answers
Match each letter with the correct label. Use the atom diagram below.
Electron - Nucleus - Proton - Neutron
Answers
C= protons
B= neutron
A= electron
Answer:
Explanation: First and foremost, we must carefully examine the provided diagram in order to properly name the sections of an atom diagram.
Step-by-step instructions are given along with the answers in sequential sequence.
Correct answer for (A) is Electron since they are present at the outermost shell of an atom.The correct answer for (B) is Neutron since it is the central element of an atom.The proton is the right answer for (C), as it is included in the nucleus grouping with the neutron.The nucleus is the correct option for (D) since it is the primary component of the atom and includes both protons and neutrons.Learn more about the Atom here:
https://brainly.com/question/12578802
Rocks become magnetic when(1 point)
rocks are heated to extreme temperatures.
continents move.
Earth's magnetic field reverses direction.
iron particles within the rock align with Earth's magnetic field.
Answers
Explanation
Iron partials are the only thing on earth that is magnetic or the core but the core does not switch direction.
Rocks become magnetic when ; ( D ) Iron particles within the rock align with Earth's magnetic field.
The magnetic components of the earth are the iron particles which are components of a rock and the Earth's core which is an in-movable part of the earth's crust.
Therefore for a rock to become magnetic its iron particles have to come in contact/ align with the magnetic field within the Earth.
Heating up the rocks will increase its' temperature and increase the possibility of producing molten magma and not making the rock magnetic.
Hence In Conclusion Rocks become magnetic when iron particles within the rock align with Earth's magnetic field.
Learn more : https://brainly.com/question/20983575
NNNOOOOOOOOOO LLLIIIINNNKKKKKKKKSSSSSSS Plastic takes more than ________ years to degrade.
A. 450 years
B. 300 years
C. 350 years
D. 400 years
Answers
Explanation:
The right option should be a
Select the correct answer from each drop-down menu.
Flow chart, The Rock Cycle. Top, rectangular block Igneous points to blocks A (left), B (right). Block B points to middle block Magma to Igneous block. Words read, increasing pressure and temperature, weathering, deposition, lithification.
In this model of the rock cycle, A represents
rock and arrow B represents the process of
Answers
Answer: A
Explanation:
The spot labelled as'A' in the image will turn into extrusive igneous rocks.
What are igneous rocks?
Igneous rocks are one of the three main rock types the other two including sedimentary and metamorphic rocks.These rocks are formed by cooling and solidification of lava or magma.
The magma is derived from partial melts in the planet's mantle or crust.Melting is caused by increase in temperature or decrease in pressure or even change in composition.Solidification occurs either below surface which is called as intrusive rocks or on the surface as extrusive rocks.
They are classified according to their texture,mode of occurrence,chemical composition,geometry and mineralogy of rock.The two important variables for classification are mineral composition and cooling history.
Learn more about igneous rocks,here:
https://brainly.com/question/23555197
#SPJ5
Which choice describes an organism found in the understory of a rainforest? Responses
A. Palms and other small trees
B. Very tall trees
C. Bacteria
D. Thick, woody vines
Answers
Answer: Palms and other small trees
Explanation:
Answer:
A. Palms and other small trees
Explanation:
Understory Layer
Located several meters below the canopy, the understory is an even darker, stiller, and more humid environment. Plants here, such as palms and philodendrons, are much shorter and have larger leaves than plants that dominate the canopy. Understory plants’ large leaves catch the minimal sunlight reaching beyond the dense canopy.
https://brainly.com/question/21423132
*I’m confused? Pls help, it’s due tmr*
Modeling Tool: Two Samples at the Atomic Scale
Goal: Create a model that represents a repeating group of atoms that could make up sample 2.
Answers
Answer:
PENTANE
Explanation:
5.
Which statement accurately describes the atoms of a specific element?
a.)A zinc‚ Zn‚ atom contains 30 protons inside the nucleus and 30 electrons outside the nucleus.
b.)A scandium‚ Sc‚ atom contains 45 electrons outside the nucleus and 21 neutrons inside the nucleus.
c.)An indium‚ In‚ atom contains 115 protons inside the nucleus and 49 neutrons outside the nucleus.
d.)An aluminum‚ Al‚ atom contains 27 electrons and 27 protons inside the nucleus.
Answers
Which phrase describes how metamorphic rocks form?
form from melting
form at Earth’s surface
form from sediments
form from existing rocks
Pls answer it
Answers
Give brainliest please
Scientists in the United States work closely with scientists in other countries to develop new technology. What are the advantages of having a single system of measurement?
(ALSO due tmr - someone please help I don't understand it!)
Answers
In a solid, the molecules are held together _____________ in their position.
A. Tightly
B. Loosely
C. Freely
D Gently
(is it tightly or gently??)
ik this is easy but can't decide
Answers
To help remember solids are really hard so they have the tightly cram together
But I’m liquids they’re more free to do whatever they want as long as they are close
Hope this helps :)
Animals respond to threats in their environment by attacking or escaping. Either response is the result, mostly, of interactions between -
Answers
Answer:
escaping
Explanation:
The cells in the human body are like little factories. In order to grow, repair, and live, the cells need supplies. Which body systems help these cells get the energy they need?
A) circulatory system and immune system
B) digestive system and excretory system
C) circulatory system and digestive system
D) respiratory system and excretory system
Answers
Answer: A) circulatory system and immune system
Circulatory system and digestive system are the body systems which will help these cells get the energy they need.
What is Digestive system?
These are parts of the body which are involved in the breakdown of food to form energy and other compounds.
Circulatory system on the other hand ensures the nutrients are transported to other parts of the body which is why option C was chosen.
Read more about Digestive system here https://brainly.com/question/1285073
#SPJ9
List the characteristics of life that plants and animals in a food web share
Answers
Answer:They are movement, nutrition, respiration, sensitivity, reproduction, excretion,and growth.
Explanation:
Matter are anything that is made up of atoms. The quantity of matter can be observed only on the basis of mass and volume calculation. Thus, movement, nutrition, respiration, sensitivity, reproduction, excretion and growth are the characteristics of life that plants and animals in a food web share.
What is matter?Matter is a substance that has some mass and can occupy some volume. The matter is mainly used in science. Matter can be solid, liquid or gas.
So as we saw that matter has some mass so mass can be measured in gram only. Mass can also be represented as number of molecules. We also saw that matter occupy some volume and that volume is measured only in liter. Movement, nutrition, respiration, sensitivity, reproduction, excretion and growth are the characteristics of life that plants and animals in a food web share.
Thus, movement, nutrition, respiration, sensitivity, reproduction, excretion and growth are the characteristics of life that plants and animals in a food web share.
To learn more about matter, here:
https://brainly.com/question/4562319
#SPJ2
If a substance has a density of 19 g/cm3, then what is the mass of 8 cm3 of this substance?
Answers
An increase in the movements of particles in a substance is associated with an increase in energy
Answers
Answer: More atoms and higher temperature mean more thermal energy.
Explanation: The greater the motion of particles, the higher a substance's temperature and thermal energy. A substance's total thermal energy depends on its temperature, number of atoms, and physical state.
What is one way that potential energy might be involved in rescue team missions?
Answers
Answer: The rescue workers can get energy to the batteries in their equipment during rescue missions by using a generator to convert the kinetic energy to potential energy. Potential energy is then stored in the battery.
Explanation:
From a quizlet i found online.
Answer:by using a generator to convert the kinetic energy to potential energy. Potential energy is then stored in the battery
Newton's second law of motion is F = ma.
A net force of 60 N north acts on an object with a mass of 30 kg. Use Newton's second law of motion to calculate the amount of acceleration the object will experience. Then explain how the amount of acceleration will change if the net force or the mass of the object increases?
Answers
Answer: The acceleration of the object is 2m/s^2. If net force increases, acceleration will also increase and if mass increases, the acceleration will decrease.
Explanation:
Force is defined as the product of object's mass and acceleration.
Mathematically,
F = ma ......(1)
or,
a = F/m .....(2)
where,
F = Force exerted on an object = 60N
m = mass of an object = 30kg
a = acceleration of the object = ?
Putting values in above equation, we get:
a = 60 kg.m/s^2/30 kg = 2m/s^2
The acceleration of the car is 2m/s^2.
From equation 2, it is visible that acceleration is directly proportional to force. This means that \if force increases, acceleration also increases.
And acceleration is inversely proportional to mass of the object. This means that if mass increases, the acceleration decreases.
Hence, if net force increases, acceleration will also increase and if mass increases, the acceleration will decrease.
A net force of 60 N north acts on an object with a mass of 30 kg , so according to Newton's second law of motion the acceleration of the object would be 2 m / s²,the amount of acceleration would decrease if the mass of the object increases.
What is Newton's second law?Newton's Second Law states that The resultant force acting on an object is proportional to the rate of change of momentum.
F =m × a
As given in the problem, a net force of 60 N north acts on an object with a mass of 30 kg.
60 = 30 × acceleration
acceleration = 60 / 30
= 2 m / s²
Thus, the acceleration of the object would be 2 m / s² , and the acceleration would decrease if the mass of the object increases.
Learn more about Newton's second law here , refer to the link ;
brainly.com/question/13447525
#SPJ2
Methanol is the simplest alcohol. How are larger alcohol molecules formed?
Answers
A student wants to determine the effect of mass on kinetic energy. She will drop two balls of the same size into a pool of water. Which investigation method should the student use?(1 point)
a. She should drop two balls of the same mass from different Hights.
b.she should drop two balls with different masses from the same Hights
c.she should drop two balls with different masses from different Hights
d.she should drop two balls of the same mass from the same Hights
Answers
What is the charge on the Cr in Cr2O72-
Answers
Answer:
+6.
Explanation:
So, a chromium atom here has an oxidation number of +6.
Choose the most correct statement about metals
A. Metals have atoms, meaning they can be pulled into wires
B. Metals are reflective, meaning they can be pulled into wires
C. Metals are ductile, meaning they can be pulled into wires
D. Metals have luster, meaning they can be pulled into wires
Please help i've been struggling on this for a while
Answers
Answer:
C. Metals are ductile, meaning they can be pulled into wires
Write a three paragraph essay about being a scientist. Include the following: If you could be any kind of scientist, what kind would you be? Why? Describe what your life would be like as the scientist you imagine.
Answers
Answer:
the answer is a hope this hep;slms
Explanation:
betuase im write
Answer:
If I were to be a scientist, I'd be a botanist. A botanist is a scientist who studies plants. For example, they study many different aspects like their genetic, physical structure, and the distribution. They also study the relationship between plants and their different environments.
I would choose to be a botanist, because they help save our plants which are very important. They also help with telling others what exactly causes pollution and possible ways to stop it. Botanist also help with providing human resources like food. Without botanist, we would have a lot less of resources that we use in everyday life.
I can see my life as a botanist in many different ways. I might be put in the chemical based section or I might be put in the analysis of plants. Overall if I were to see myself as any kind of scientist, It would have to be a botanist.
Explanation:
Hope it helps, feel free edit whatever you'd like too
Match these items.
1. imprint of plant or animal
original-remains fossil
2. undecayed plant or animal part
carbonized fossil
3. replaced by a mineral
petrified fossil
4. only carbon remains
cleavage
5. mountain
geology
6. from magma
metamorphic
7. from physical and chemical changes
igneous
8. sandstone
print fossil
9. helps identify rocks
landform
10. science of Earth
sedimentary
Answers
1. print fossil
2. carbonized fossil
3. petrified fossil
4. cleavage
5. landform
6. igneous
7. metamorphic
8. print fossil
9. geology
10. sedimentary
\(\)
The print fossil, original-remains fossil, petrified fossil, carbonized fossil, landform, igneous, metamorphic, sedimentary, cleavage, and geology are the respective matches as given in the question.
Print fossil is imprint of plant or animal and basically known as fossil impression. Original-remains fossil comprises of the original tissues and parts of organism and undecayed plant or animal part. Petrified fossil is replaced by a mineral. Carbonized fossil is only carbon remains. Landform is a mountain. Igneous is from magma.
Metamorphic is from physical and chemical changes. Sedimentary rocks are sandstone. Cleavage helps to identify rocks. Geology is the study of science of earth.
Learn more about rocks and fossils:
brainly.com/question/2168243
A small gap is left between the rails in the railway track. Analyze the reason.
Answers
Answer:
There could be several possible reasons for a small gap between rails on a railway track, such as:
1. Expansion joints: Railways are designed to allow the tracks to expand and contract with changes in temperature. To accommodate this expansion, small gaps are left between the rail ends and filled with expansion joints or plates.
2. Wear and tear: Over time, the rails may experience wear and tear due to heavy loads, weather conditions, and other factors. As a result, small gaps can appear between the rails.
3. Maintenance: During maintenance activities, rail tracks may be adjusted or replaced, which could lead to small gaps between the rails.
4. Environmental factors: Environmental factors such as soil shifts, earthquakes or other natural disasters can also affect the alignment of the rails, leading to small gaps.
These are some of the possible reasons for a small gap between the rails on a railway track.
Answer:
The small gap left between the rails in a railway track is intentional and serves a specific purpose. This gap is known as the rail joint, and it allows for the expansion and contraction of the rails due to changes in temperature. When the temperature changes, the metal rails will expand or contract, and if they were joined together tightly, they could buckle or become deformed, which could be dangerous for trains passing over them. The rail joint allows the rails to move slightly and prevent damage to the track.
Additionally, the rail joint also allows for maintenance and repairs of the track. If there were no gap between the rails, it would be challenging to replace a damaged rail or perform routine maintenance, such as tightening bolts or lubricating joints. With the rail joint, maintenance personnel can easily access and work on the track.
Overall, the small gap left between the rails in a railway track is intentional and serves a crucial function in ensuring the safety and reliability of the track.
What is necessary for a metallic bond to form?
A) The atoms should be in close proximity.
B) The atoms should be far apart.
C) The electrons must be attracted to each other.
D) The nuclei must contain neutrons.
Answers
Help i got 5 mins!!!!!!!!!!
No bots or report
Answers
Answer:
first option
Explanation:
Explanation
Did this before